Sameer Kumar Pattanaik

Experience

• 

  Accenture

  Feb 2021 - Sept 2022

  APPLICATION DEVELOPMENT ASSOCIATE

  1.Used spring boot and hibernate technologies to develop web application and Rest api's for adding functionalities to existing applications.2.Performed unit testing of applications by developing and applying test cases in JUnit.3.Supported code improvements that resulted in a 20% boost in app stability during quality assurance, user acceptance testing, and post implementation.

• 

  Rakuten Symphony

  Sept 2022 - now

  • Built scalable backend services in Java for Rakuten B2B Mobile Network and B2C ISP users, adeptly handling 1 million monthly active users• Implemented an event-driven architecture leveraging Confluent Kafka to enable real-time inventory status updates,enhancing the system’s ability to handle high-volume data efficiently (20K+ lines). • Resolved a critical production concurrency issue impacting resource reservation. Utilized a robust locking mechanism to ensure data integrity by preventing duplicate records.• Initiated the design and development of an Inventory Dashboard, incorporating Keycloak access and a Spring Boot backend, resulting in a 50% reduction in manual monitoring and uploading efforts for resources.• Enhanced API performance by 89%, decreasing response time from 1 hour to 6 minutes while processing 150k records.Achieved performance gains through optimization. Show less

  • Senior Software Engineer

    Apr 2024 - now

  • Software Engineer

    Sept 2022 - Mar 2024